1e76f8b895
The IOCTL is used by 'ifconfig -v' to show SFP+/QSFP+ information including inventory information and dianostics (temperature, light levels, voltage etc). Reviewed by: gnn,melifaro Sponsored by: Solarflare Communications, Inc. MFC after: 2 days Differential Revision: https://reviews.freebsd.org/D5240